Spindle for spinning



(No Model.)

J. E. TYNAN. SPINDLE FOR SPINNING.

Wa'fnesses:

f. I I I UNITED STATES PATENT OFFICE.4

SPINDLE FOR SPINNING.

SPECIFICATION forming part of Letters Patent No. 408,862,

dated August 13, 1889.

Application iled July 14, 1888. Serial No. 279,941. (No model.)

.To all whom, t may concern.-

I-Ee it known that I, JOSEPH E. TYNAN, of Paterson, in the county of Passaic and State of New Jersey, have invented a new and useful Improvement in Spindles for Spinning, of which the following' is a specification, reference being had to the accompanying drawings.

My improvement, which is applicable to spindles and bobbins for the spinning of various fibrous materials, is more especially designed for spinning silk.

For spinning silk it is desirable that the spindle should be as light as possible, and that, while the bobbin should be accurately and securely centered upon the spindle, it should be capable of such easy removal therefrom by taking hold of it in the hand with the silk upon it that the grasp of the hand need not injure or disarrange the silk.

The object of my invention is to obtain a spindle possessing the desirable qualities hereinabove .mentioned I will now proceed to describe my invention with reference to the accompanying drawings, and will afterward point out its novelty in a claim.

Figure l represents an elevation of'a spindie and bobbin adapted for spinning a doubled thread of silk embodyingmy invention, showing also a spindle-bolster and bolstersup porting tube, a step, and a flier, all the parts except the spindle being in section. Fig. 2 is a similar view of a spindle and bobbin adapted for the spinning of a single thread.

Similar letters of reference designate corresponding parts in both iigures.

Referring iirst to Fig. l, A designates the spindle, and B the bobbin.

C is the bolster, D the bolstensupporting tube, and I the rail of the spinning-machine in which the said tube is supported, and secured in the usual or any convenient manner.

The spindle is represented as having' the lower part, which tits the bolster, of cylindrical form, and as having its lower end supported on a step at the bottom of the bore of the bolstensupporting tube D. Above the bolster the spindle is represented as slightly tapered upward,fthe part which is received part of which is large enough internally to pass loosely and without touching over the exterior of the bolster-supporting tube B, and has a whirl F formed around its bottom. The upper part of this sleeve is conical externally and slightly larger than the upper part a of the bore of the bobbin. This part a of the bore of the bobbin may be of the usual size to lit the ordinary winding-spindle,on which the bobbin may be secured in the usual way for winding the thread upon it; but below this portion the bore of the bobbin is slightly enlarged conically, as shown at c, to tit the conical portion c of the sleeve E, the said conical portion c of the bore being at about the middle of the length of the bobbin, but preferably, as represented, just above the middle. Below this conical portion c the bore of the bobbin is enlarged, that it may pass freely over that portion of the sleeve E which is outside of the bolstersupporting tube. The said lower portion of the said sleeve is cylindrical, and vthe corresponding lower portion of the bore of the bobbin. is of a cylin drical form to correspond, but just so slightly larger that while it will not bind upon that portion of the sleeve it ymay center the bobbin thereon, leaving the bobbin to lit tightly to the upper conical portion c of the vsaid sleeve with the conical portion c of its bore only.

The bobbin is held and supported upon the spindle and caused to rotate therewith only by means of the conical. portion c of its bore tting tightly on the conical portion of the sleeve, and it does not touch the spindle itself at any point; and the important feature of this improvement consistsin that the part e of the sleeve of the spindle and the corresponding part c of the bore of the bobbin iitted thereto may be made of a taper form much more abrupt than it would be possible to give, without an enormous increase of weight, to a spindle upon which the bobbin IOO lits direct-ly, and the size of the upper partof which is governed by the size of the prepara tory winding-spindle, and it is owing to the bobbin being entirely supported and carried upon this abrupt taper portion of the sleeve that the easy removal of t-he bobbin from the spindle is provided for.

In the example of the invention represented in Fig. l, the bolster C has the greaterportion ofthe length of its exterior smaller than the bore of the supporting-tube D, but has a rounded external swell b, which lits said bore in such manner as to provide for the slight oscillation of the bolster and the slight lateral movement in all directions of the lower part of the spindle. Below the said swell l) there is interposed between the bolster and the bore of its supporting-tube a conical spiral spring G, the interior of the upper portion of which lits the bolster and the exterior of the lower portion of which fits the supportin g-tube. lhe bolster and the said spring G constitute a bearing for the lower part of thei spindle, which is capable of yielding or moving laterally in all directions. By thus providing a laterally-yieldin g bearing, which will allow the spindle and its load to find its true center of rotation, l am enabled to make the taper of the portions c of the bore of the bobbin and c of the exterior of the sleeve more abrupt than would otherwise permit the bobbin to be retained tightly upon the said sleeve during the rapid rotation of the spindle.

In the example of theinvention represented in Fig. l. the spindle is represented as long enough to project su liiciently high above the bobbin to receive a flier ll, which maybe of any well-known or suitable kind.

In the example of my invention represented in Fig. 2, no flier being required, the upper part of the spindle terminates below the top of the sleeve E. In all other respects this example is like that shown in Fig. 1.

A spindle with its sleeve E and whirl F constructed according to my invention, for a bobbin. of a given size, does not require to weigh half as much as the lightest spindle now in use for a bobbin ot' the same size.

In adapting a bobbin to my invention the enlargement of those parts of the bore which are to receive the sleeve F does not impair its capability of being secured inthe nsualmanner to the winding-spindles, as the part a of the bore above the taper middle portion C is left of suilicient length to be propcrlysceured upon the winding-spindle.

lV hat I claim as my invention, and desire to secure by Letters Patent, is

The combination, with a spinningsl'iindle, ot a sleeve fast thereon and having theuppcr part of its exterior tapered upward for the support of a bobbin on that part only, and having below said tapered part an externallycylindrical part larger than the tapered upper part for the centering of the sosupported bobbin, substantially as herein described.

JOSEPH E. TYNAN. lVitnesses:

Fammi. I'lAYNEs, JOSEPH W. Ron. 

